I found decision but it take little source code update.
In datagrid toolbar we can use #id or array of linkbutton configs, but if add linkbutton element (or his childs) it takes little change in build grid method source code.
In the toolbar create part (for->else) add checking
for detect it just conf or element, and if it element do
In my case it work stable.
If it possible please include this feature in next patch/release.